Table 3 Hemagglutination antibody titers of schoolchildren participant sera obtained before, after vaccination and post-season during three consecutive years
From: Geographical heterogeneity and influenza infection within households
1st Year | 2nd Year | 3rd Year | |||||||
|---|---|---|---|---|---|---|---|---|---|
TIV(-) | TIV(+) | P | TIV(-) | TIV(+) | P | TIV(-) | TIV(+) | P | |
N = 59 | N = 65 | N = 172 | N = 99 | N = 67 | N = 162 | ||||
Pre-vaccination | |||||||||
HI-titer≧40 | |||||||||
  H1N1 | - | - | 155(0.90) | 91(0.92) | 45(0.67) | 124(0.77) | |||
  H3N2 | - | - | 142(0.83) | 77(0.78) | 17(0.25) | 58(0.36) | |||
  B | - | - | 44(0.26) | 26(0.26) | 49(0.73) | 104(0.64) | * | ||
GMT # | |||||||||
  H1N1 | - | - | 263.78(211.80,315.75) | 412.83(246.23,579.42) | * | 82.76(60.50,105.02) | 89.38(75.14,103.62) | ||
  H3N2 | - | - | 210.26(168.06,252.46) | 245.91(166.90,324.92) | 52.54(20.37,84.70) | 85.40(57.74,113.06) | |||
  B | - | - | 25.76(21.17,30.34) | 30.81(22.25,39.36) | 69.18(53.71,84.65) | 75.43(54.95,95.92) | |||
Post-vaccination | |||||||||
HI-titer≧40 | |||||||||
  H1N1 | 33(0.56) | 60(0.92) | * | 112(0.65) | 61(0.62) | 37(0.55) | 132(0.81) | * | |
  H3N2 | 51(0.86) | 59(0.91) | 114(0.66) | 61(0.62) | 6(0.09) | 49(0.30) | * | ||
  B | 26(0.44) | 43(0.66) | * | 72(0.42) | 39(0.39) | 23(0.34) | 73(0.45) | ||
GMT # | |||||||||
  H1N1 | 161.80(91.12,232.48) | 422.77(232.82,612.71) | * | 408.08(306.32,509.84) | 324.14(245.96,402.32) | 97.76(19.45,176.07) | 121.33(100.60,142.06) | ||
  H3N2 | 353.93(253.05,454.81) | 411.41(312.73,510.09) | 487.59(407.64,567.53) | 455.61(368.75,542.46) | 20.82(12.91,28.73) | 61.82(41.07,82.57) | * | ||
  B | 115.74(67.21,164.28) | 114.24(83.34,145.14) | 46.48(38.09,54.87) | 48.59(36.73,60.45) | 33.13(24.06,42.21) | 44.26(33.37,55.15) | |||
4-Fold increase (Post vs Pre-vaccination) | |||||||||
  H1N1 | - | - | 39(0.23) | 17(0.17) | 11(0.16) | 82(0.51) | * | ||
  H3N2 | - | - | 60(0.35) | 36(0.36) | 3(0.04) | 15(0.09) | |||
  B | - | - | 62(0.36) | 31(0.31) | 0(0.00) | 26(0.16) | * | ||
Post-season | |||||||||
HI-titer≧40 | |||||||||
  H1N1 | 40(0.68) | 60(0.68) | 154(0.90) | 89(0.90) | 45(0.67) | 116(0.72) | |||
  H3N2 | 48(0.82) | 59(0.82) | 163(0.95) | 95(0.96) | 28(0.42) | 75(0.46) | |||
  B | 24(0.40) | 43(0.40) | 167(0.97) | 93(0.94) | 26(0.39) | 68(0.42) | |||
GMT # | - | - | |||||||
  H1N1 | 129.26(71.17,187.34) | 157.46(68.66,246.25) | 570.61(497.40,643.82) | 503.08(410.42,595.74) | 132.69(87.48,177.89) | 90.52(77.27,103.78) | * | ||
  H3N2 | 272.46(159.43,385.48) | 209.03(120.55,297.52) | 319.04(269.30,368.79) | 390.61(316.43,464.78) | 99.63(34.88,164.38) | 165.77(110.13,221.41) | |||
  B | 40.43(28.70,52.15) | 55.53(38.39,72.67) | 23.46(20.42,26.50) | 24.70(20.09,29.31) | 31.34(22.69,40.00) | 37.87(28.82,46.92) | |||